Printer&#39;s sheet receptacle



July 3, 1928.

C. KORZENBORN PRINTERS SHEET RECEPTACLE Filed Dec. 15, 1 927.

Iligfi. Fi .5.

Patented .Elnly 3, 1928.

, barren STATES CHAR-LES KORZENBOBN, OF CINCINNATI, OHIO.

PRINTERS SHEET" RECEPTACLE.

Application filed December 13, 1927. Serial No. 239,782.

This invention relates to printers sheetrcceptacles, or, more particularly speaking, to the rectangular open frames that form what are more commonly known as airboxe:-: and that otherwise compr ses receivi boxes on the jogger-boards or fly-boards cylinder printing-presses for the everrpiling and cleanly, unsmeared deposit of the successive freshly-printed sheets as they drop or pass from the printing-cylinder to said jogger or fly boards in the process of prmtmg. 7

Heretofore, said air-boxes have been of such unsatisfactory structure that the work performed could not be relied on so as to assure straight or even-piled and unsmeared stacks of printed sheets on the fly-board and to accommodate, in a single airbox or in but a very few of them, various dimensions of sheets in the press.

To the end of securing even stacking and cleanly seating of the somewhat moist freshlyprinted sheets of different or variable lengths and widths as the prime object of my invention herein, and to accomplish the same without an unduly expensive or complicated device that is proof against the shifting of said moist sheets, and whereby any waste of costly printed sheets is offset, I have produced the adjustable open and reliable air-cushioning receptacle that is duly shown in the accompanying sheet of drawings, in which Figure 1 is a plan view, showing my device in slightly expanded condition, or just next to or beyond its smallest sheet capacity; Fig. 2, a longitudinal elevation of the device, showing the prime or initial working-side thereof that is located at the bottom of said Fig. l, but made on a larger scale and with parts thereof in section and other parts broken away for a. clear disclosure of the operating details; Fig. 3, a cross-section, taken on the line 3, 3, of Fig. 1, to show the interior of the left-side member of the frame; Fig. t, a cross-section taken on the line t, at, of Fig. 1, to show the interior of the longitudinal member that disposed at the top of Fig. 1; Fig. a cross-section taken on the line 5, 5, of Fig. l, to show the interior of the right-side member of the frame; and Fig. 6, a plan view of the preferred form'of crank-handle that is used in operating the said working-side" of the frame for due co-operation in harmony with the other three subsidiary expansible sides ill) of the frame, the socket or engaging end of the working-handle being shown in section.

The four side-members of the open rectangular frame herein are each of channeled sheet-metal structune having right-angled inwardly-turned flanges, and they are paired so as to form one integral right-angled frame member of section A and a companion integral right-angled frame member or section B, both members A and B, when properly assembled, duly forming a rec-tan uiar. outwardly-open walled outer-casing v. ith a pair of open corners or spaces A and B, as best Shown in Fig. 1, that lie diagonal to each other and are rendered duly cxpansihle by the provision of right-angled filler-members or extension frame-bars E and F, respectively, that are, also, of channeled sheetmetal construction, the latter channeledfeature being as best seen in Figs. 2, 8, 4t and 5, and further provided with inwardlyturned or right-angled flanges 0 so as to telescopically engage the outer channeled and inwardlyflanged casing-members A and B. I designate the flanges on the outer casing-members A and B with the letters a and Z), respectively, and said flanges a and Z) serve to form a protective, smooth margin or edging for the said channeled casingmembers and the internal coinciding channeled extension-members that freely telescope when assembled and to such an extent as toform a substantial inter-lap for the en:- treme outward-expansion of the two angular casing-members or sections A and B without danger of wiggling or getting out of true rectangular relation, the same though the casing-members were in entirely closed or the most contracted relation for accommodating the minimun'i-size sheets. The two outer corner-ends of the said casing-members have ,inwardlyturned flange-ends c (Fig. 2) so as to properly close the several diagonally-related elbows or corners thereof, and the same is true, too, at (Z of the outer diagonally-related elbows or corners A and B of the extension-menibers C and D of the air-box herein. Thus, the four right-angled elbows or corners of the air-box are properly closed and given a 'iinishingellectwithout any raw edges to the sight or touch of the user, or to the detriment of the printed sheets while on their way through the press.

In order, therefore, that the said coacting casing and extension members may be accurately and uniformly moved in independent transverse and longitudinal relations I provide driving or shifting feed-screw Fig. 2. At the tail end or nner terminal of the said drive-screw 7 I provide a small screw 11 whose head is oflarger diameter than that of the said drive-screw and adapted to move, with a free sliding-fit, within the incasing or sheathing tube 12 that extends from said transverse wall to a cross-pin connection 13 with the nippled end 14- of a. circularly-grooved couplinghead 15 that rests or seats in a transverse pillow-block 16 located near the right-hand outer endof the said extension-member C. It will be here noted that the drive-screw 7 is of lesser diameter than that of the bore ofits incasing or sheathing tube 12 so that there is no retarding or wearing frictional I contact of the threaded face of the said drive-screw with the inner face of the tube. A removable cap-plate 17 is provided on the transverse pillow-block 8 at one end of said drive-screw 7 and another like removable cap-plate 18 is provided on the transverse pillow-block 16 at the outer mounting-end 15 of the said incasing-tube 12, for the ready placing and removal of the said drive-screw 7 and its ineasing-tube 12 when desired In order that the main outer casing-members A and B may not be accidentally parted from the internally telescoping extension-members E and F, and to limit their expanded relation in both their transverse and longitudinal directions, I provide a spring latch-bolt '19 at each of four points, viz: e, f, g and h in the said casing-members A and B, as best indicated in Fig. 1 for location thereof. but as better shown in detail structure in Fig. 2, wherein the latch'extends under spring-pressure from a seatingsocket 20 that is made integral with the said studded-portion 9 of the transverse wall 10 and it has a thickened portion or shoulder 21 to prevent its outward passage beyond what is necessary for its sloping or beveled outer end to pass through the opening 0" in the side-wall 0 of the channeled extensionmember C and thence into the opening e that is made in the outer flange or sidewall a of the channeled casing-member A, when the said extension-member C has progressed outwardly its intended distance or into its fully expanded condition and the two openings 0 and e in duly registering alignment.

The left fore-end of the said main drivescrew 7 is smooth and it has a sleeve 7 for its proper bearing in the pillow-block 8 under the cap-plate 17, and the hub of a miter or bevel gear 22 is mounted on the outwardly-extended end of said smooth portion of the said drive-screw 7 for meshing-engagement with a like miter gear 23 that is mounted on the adjacent outer end of a square cross-sectioned plunger rod or shaft 24 arranged transversely to the said drivescrew 7 but lying in the telescoping channeled end casing-member A E. The extreme, outer end 24 of the said'plungerrod 21 extends beyond the face of the said miter gear 23 for the reception of the hollow socket-head 25 of the operating crankhandle 26, the latter detail-auxiliary herein being best shown in Fig. 6 and of convenient form for the operator of the press in adjusting his air-box to conform to the work passing throughl The said plunger-rod 21 ,telescopically-mountedV in a square-sectioned tube or sheath 27 that is journaled at one end in a pillow-block 28 having a removable cap 29, as best seen in Figs, 2 and 3, the said Fig. 3, however, not showing the bearing-block 28; nor its cap 29, but otherwise showing the bearing-block 30 and removable cap 31 that are located at the opposite end of the inner telescoping channeled-chamber or extension-member E, beyond the dotted line 3, 3, of Fig. 1 and provided for the bearing or journaling of the further end of the said shaft or plunger-rod 2 1 but omitting a transverse wall such as the one 10 seen in Fig. 2 that carries the latch-bolt for limiting-stroke engagement at thepoint f seen in Fig. 1. The said omitted transverse wall in Fig. 3 is provided with a protuberant part or studded portion similar to the one 9 of Fig. 2 for the feeding coengagement of the screw or threaded rod 32 that is incased in a tube 33 and has a hearing at one end in the pillow-block 28 and at its other end advances or slides on a screw-head similar to the one 11 in Fig. 2 and within the said tube 33 whose further e'nd rests or seats in the pillow-block 30 similar to the mounting-end 15 of the screwincasing tube 12 seen in Fig. 2.

.On the near end of the said screw or threaded rod 32 is mounted a miter gear 34: that meshes with a like gear 35 on the adjacent end of a square cross-sectioned plunger rod or shaft 36, the latter parallelingthe main drive-screw 7 in the same channeled chamber and incased or sheathed in a square cross-sectioned tubing 37 for both telescopic and co-rotating engagement. The round reduced solid end-plug portion 37 of the tubing 87 bears in the cap-covered pillowblock 8, asbest seen in Fig. 2, and the said incasing-tube 37 has an enlarged formation 38 at its endadjacent the said pillow-block 8 for the purpose of preventing the sliding thereof, and the internal plunger-rod 86 is adapted to slide within the said incasingtube 37* ina telescopic manner for the desired adjustment of the, frame longitudinally for different lengths of freshly-printed sheets in the operation of the press. The gear end 35 of'plungei rod tube-37 is'provided witha square cross-sectioned extension 37 for the engagement of the socket-end 25 of the operating or winding key 26 in turning rod 36 and screw 32 in'the several desired directions for the relative adjustments of the air-box, both transversely and longitudinally, to suit the various dimensions of printed sheets.

The right-hand end of the plunger-rod 36 has an enlarged sleeve-formation 39 and an enlargeddiead 40, between which it has a. round reducodportion 41 (.dottedin Fig.

that'bears in the cappedpillow-block 16 and it, also, has at its extreme outer end a miter gear 42 that meshes with a similar miter gear 43 on a. screw-shaft 44, the latter extending along the interior of the incasingtube 45 in the channeled-member B, the said tube 45 resting at its far end in the pillowblock 46 that has a removable cap 47 and best seen in Fig. 5. The tail end or terminal of the said screw-shaft 44 has a screw sliding-support within its incasing-tube 45, similar to the one 11 seen in Fig. 2 and for the same reason and purpose. The action of the meshing miter gears 42 and 43 is to communicate transverse motion to members or sections A and B of the air-cushioning frame for different widths of sheets and thus provides for transverse adjustment of the frame.

At the left-hand end of the said solid endplug portion 37" of the tubing 37 is attached the hub-portion of a miter gear 48 that intermeshes with the similar miter gear 34, aforesaid, on the rear end of the screwthreaded rod 32, a square-ended projection 49 being provided on the said miter gear 34 for the engagement of the operating-key 26 when it is desired to impart motion to the screwshaft 45 through the medium of the incasing-tube 37, the rod 36 and the intermeshing miter gears 42 and 43, as best shown in Fig. 2, and to couple the screw shafts 32 and 44 so that they shall act in unison for the said relative transverse adjustment of the members A and B of the air-box herein.

A pillow-block 49, with a removable cap 50, is provided at the right-hand end of the channeled chamber in Fig. 2 for the desired resting and journaling of the near end of the said screw-shaft 44.

In Fig. 4, I have shown the manner of mounting the screw-shaft 51 .in the upper for the properly aligned and unsmeared delivery otfreshly printed sheets on thejogger or fly board of a printing-press, I have shown how four of the telescoping cham'ieled' sides of the box are provided with advanc ingand retracting screw-rods while but two of those sides have, in addition to said screwrods, parallel two-part, plunger-type, telescopingsquare-sectioned compensating transmission members for conveying rotary motion'to the other twoscrew-contained sides of the box when the relative transverse and longitudinal adjustments'of the air-box. are to be effected tosuit the respective different widths and lengths of descending freshlyprinted sheets in the operation of the press.

In the lower right-hand corner of Fig. 1,

have shown graduated lines or a scale to indicate inches and fractions thereof for displaying to ready view the relative extent to which the several sides or sections of the air-box is readily adjusted in providing for the accurate delivery of the different widths and lengths of freshly-printed sheets to the fly-board of the press. It is, of course, quite obvious that the crank-handle 26 may be easily manipulated from one winding square-end 24 to the other one 37 of the said several two-part telescoping square cross-sectioned compensating transmissionmembers in changing from transverse shift to the longitudinal shift, or vice versa, in the relative adjustments of the air-cushioning box for the various dimensions of freshly-printed sheets passing through the press, from the fly to the said air-box on the j ogger-board, for accurately aligned and clean delivery.

I claim 1- 1. A printers sheet-receptacle comprising, in combination, a corresponding pair of right-angled sections adapted to be arranged into a hollow square or continuously-closed frame whose walls are composed of transversely and longitudinally inter-sliding flanged channel-members for reciprocal telescoping-movementor adjustment to suit the delivery of different dimensions of printed sheets in true vertically-aligned and cleanly condition, a screw-rod mounted, to turn, in each of the four outwardlyopen frame members, a telescoping compensating two-part transmission-rod mounted, to turn, in each of the two extended legs or limbs of one of the said rightlot) V expanded movement of the saidsection's to prevent, parting of their telescoping cliannel-members at the extreme-capacity of the from the fly to the jogger-board means on. said -transmission-rods for the engagement of an operating-key automatic stop-latch means 111 the sald outwardly-open sided frame members for lnnltlng the outward or sheet-receptacle and meansfor accurately detecting-0r. visualizing the exact dimensions of the expanded or contracted rela-- tions of. the several rightangled sections for transverse or.long1tud1nal ad ustment of the sheet-receptacle in, use in acc0mmodatingprinted sheets of diflercnt sizes, substantially as shown and described.

2. In a printers sheet-receptacle or ancushioning box, the combination of an open hollow square or rectangular frame composed of a pair of corresponding rightangled sections adapted to be adjusted transversely and longitudinally to suit or accommodate different dimensions of freshly-printed sheets in their passage from the printing cylinder to the delivery or deposit jogger-table, each of the two said sections being formed of a pair of outwardly-open channeled telescoping frame members that are transversely and longitudinally recipro cable, means for driving and transmitting motion to said telescoping frame members so that the said pair of sections may be eX- tended from or drawn toward each other in unisonor in harmony so as to adjust the frame to accommodate, the different dimensions of sheets m the operation of the press and means for actuating saiddriving and transmitting.means, substantially as shown and described.

In testimony whereof I hereunto afiix my signature,

, cHARLEs KORZENBORN. 

